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Sig Sauer MCX Rattler-LT 7.62x39 Pistol - 7.75" (No Brace)

AR Pistol

In stock
Only 1 left

FFL Required Before Shipping.

Please have your dealer email a copy of their FFL to [email protected] or fax it to 253-218-2998, referencing your name and order number.


All of the breakthrough features of the original MCX-Rattler now in a more modular, more capable package. Designed to meet the needs of Special Operations forces, the MCX-Rattler LT features fully ambidextrous controls, including an ambidextrous bolt-catch, bolt-release an adjustable gas piston for suppressed and unsuppressed use, and is fitted with the SIG QD suppressor-ready flash-hider and a flat-blade trigger for ultimate control. The MCX-Rattler LT also has a cold hammer forged 7 3/4 barrel and is now fully compatible with all MCX barrels and handguards making it the ultimate modular package. 


  • 7.75in cold hammer forged barrel for ultra compact design
  • Fullly ambidextrous controls
  • Interchangable barrels, now compatible with all LT barrels and handguards
  • SIG Flatblade match trigger
  • SIG SLX/SLH suppressor-ready flash hider


  • Caliber: 7.62x39
  • Mags Included: (1) 28rd Steel Mag
  • Mag Type: AR-15 [7.62X39]
  • Action Type: Semi-Auto
  • Barrel Material: Cold Hammer Forged Carbon Steel
  • Trigger Type: 2-Stage Match
  • Twist Rate: 1:9.5
  • Grip Type: PDW
  • Overall Length: 17.5 in [444.5 mm]
  • Collapsed Length: N/A
  • Overall Width: 2.25 in [57.2 mm]
  • Height: 7.4 in (187.2 mm)
  • Threads: N/A
  • Accessory Rail: M1913
  • Operating System: Short-Stroke-Piston
  • Weight: 5.5 lbs (2.5 kg)
More Information
Product Type AR Pistol
Manufacturer Sig Sauer
Twist Rate 1:9.5
Color Black
Model Sig MCX
Platform Sig Sauer
Barrel Length 7.75"
Caliber 7.62x39

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